Remove resolv-conf now that the uplink's holder writes resolv.conf (hq ADR 0223)

Merge only once resolv-conf is unassigned on every machine and forgotten.

modules/resolv-conf/README.md

@@ -1,8 +0,0 @@
-# resolv-conf — retiring
-
-`/etc/resolv.conf` belongs to the module holding `node-uplink` (novox/hq ADR 0223): networkmanager,
-systemd-networkd and dhcpcd each write it, listing the mesh's resolvers. This module declares
-nothing any more. It stays in the catalogue for one release so that the file passes from it to the
-uplink's holder in one apply on every machine — the host hands a whole file to the resource
-declaring its path now, rather than removing it first. Once every machine has applied that, it is
-unassigned everywhere, forgotten, and removed with the seat `node-resolver-config`.

modules/resolv-conf/module.json

@@ -1,11 +0,0 @@
-{
-  "module": "resolv-conf",
-  "version": "1",
-  "slug": "resolv",
-  "claims": [
-    {
-      "name": "node-resolver-config",
-      "scope": "node"
-    }
-  ]
-}